Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6543bed6f0b9479…

MALICIOUS

PDF

356.7 KB Created: 2015-08-21 09:24:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 9b8a12fc8bfa93a41fab5a9c6e42fa86 SHA-1: 2a2a8d8f799174e1773ebaf29c3839ee1526721a SHA-256: d6543bed6f0b94794698011022af17f149985ada268567a1204b1c8de7896d9e
90 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document's primary purpose is to lure the user to a potentially harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was heavily truncated and unreadable, preventing further analysis of the lure content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 2

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://botcraftman.ru/?lip&keyword=%D0%9F%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+wi-fi+pirate+13-tortuga+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654709_skachat_aktivator_dlya_windows_7_all.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654724_ud608_shema_vklyucheniya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4654/4654823_rech_dlya_zaschituy_diploma_obrazec.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0005492f.bin
3ddcb8d9ba48b5fc9f08e8b0df1243d77d92282c75af048e51cada4efde69db0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5492F 9256 bytes
font_01_sfnt_off000562bf.bin
d885eb2268b3b2fe487a1a153b78a0e32f6b7ba2288b24abeafee05d32606c31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x562BF 15796 bytes

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